(1) Gastrointestinal: Patients point to localized pain at McBurney point, which is midway between the iliac crest and umbilicus; rebound tenderness, muscle rigidity, and abdominal guarding are noted.

(2) Pregnancy: Alder sign is used to differentiate between uterine and appendiceal pain. The pain is localized with the patient supine. The patient then lies on his or her left side. If the area of pain shifts to the left, it is presumed to be uterine.

(1) The white blood cell count is elevated, with a shift to the left: 10,000 to 16,000 mm³; 75% neutrophils. Increased body temperature may indicate ruptured appendix and septicemia.

(2) Urinalysis shows a small number of erythrocytes and leukocytes.